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CVE-2022-49974: HID: nintendo: fix rumble worker null pointer deref

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-06-18 · updated 2026-08-15
• Weakness: CWE-476

Description

In the Linux kernel, the following vulnerability has been resolved: HID: nintendo: fix rumble worker null pointer deref We can dereference a null pointer trying to queue work to a destroyed workqueue. If the device is disconnected, nintendo_hid_remove is called, in which the rumble_queue is destroyed. Avoid using that queue to defer rumble work once the controller state is set to JOYCON_CTLR_STATE_REMOVED. This eliminates the null pointer dereference.

Affected products

• Linux kernel: from 5.16 before 5.19.7; 6.0-rc1, 6.0-rc2, 6.0-rc3 — fixed in 5.19.7

How to fix

Upgrade to a fixed version: Linux kernel 5.19.7. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/1ff89e06c2e5fab30274e4b02360d4241d6e605e
• https://git.kernel.org/stable/c/7c6e6c334154be16740b44dcd7638fb510b9bd91

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